Improvement in wind-wheels



UNITED S'rA'rEs PATENT OFFICE.

LAWRENCE E. STEPHENS AND SAMUIEL F. SHAY, OF TERRELL, TEXAS.

IMPROVEMENT IN WIND-WHEELS.

Specification forming part of Letters Patent No. 171,962, dated January11, 1876; application filed September 14, 1875.

To all whom it may concern:

Be it known that we, LAWRENCE E. STE- PHENS and SAMUIEL F. SHAY, ofTerrell, in the county of Kaufman and. in the State of Texas, haveinvented certain new and useful Improvements in Wind-Wheels; and doheremore particularly set forth.

In the annexed drawings, making part of 'this specification, the figuresrepresent perspcctive views of my dome in dili'erent positions.

The dome A is made octagonal, or round, or other suitable shape, andlarge enough to surround the wind-wheel. To the bottom of this dome arearranged wheels or rollers D D, which rest upon a suitable table or way,so that the dome may be allowed to revolve. or turn with ease. B Brepresent two doors, which are connected at top and bottom by straps orwebbing O G, to prevent said doors from opening farther than isdesirable. Op-

posite the center of the doors B B, and on the other side of the dome,is a vane, F, and on each side of this vane are the doors G G. The

doors G G should be closed by means of a spring or weight, the tensionor weight being so regulated ,that the said doors will open outward whenthe pressure of the wind in the dome is greater than desired. Erepresents a valve in the top of the dome, which is also intended forthe escape of wind when the pressure is too strong.

It will readily be perceived that the tension of the springs applied tothe doors G or the weight of the valve E may be so regulated that whenthe pressure of wind is greater than required for the wheel the doorswill open or the valve rise sufficiently to allow the surplus to escape.The vane, of course, acts, as is always the case; and keeps the doors BB to the wind.

Having thus fully described our invention,

what we claim as new, and desire to secure by Letters Patent, is-

g The combination of the round or polygonal dome A mounted upon wheels DD, the hinged doors B B connected by the webbing (l O, the vane F, andthe doors G G, all substantially as and for the purposes herein setforth. g

In testimony that we claim the foregoing we have hereunto set our handsthis 31st day v of July, 1875.

LAWRENCE E. STEPHENS. SAMUIEL F. SHAY. Witnesses: l V I J. W. JOHNSON,H. D. MILLER.

